They won't pull it from a linked account, just your PayPal balance... for now.
"You acknowledge and agree that $2,500.00 U.S. dollars per violation of the Acceptable Use Policy is presently a reasonable minimum estimate of PayPal’s actual damages.... PayPal may deduct such damages directly from any existing balance in any PayPal account you control."
https://www.paypal.com/us/webapps/mpp/ua/useragreement-full#...